VSE 1.5 to 3 Times Faster Scrubbing
A bug was fixed in VSEQF, so now it works in 2.91: https://github.com/snuq/VSEQF
Use the numpad 4, 5 &amp; 6 as J, K, L keys for playback speed:

Alternatively Scrubbing can be enabled in the Timeline Editor menu(but I think that'll only affect audio playing when dragging the playhead)